Takahashi Clamshell Tube Holder, Long (FC-100DF / FC-100DL / FC-100DC)

Product Overview

This is the long-format clamshell tube holder for the Takahashi FC-100DF, FC-100DL and FC-100DC refractors. A clamshell opens along its length, seats around the optical tube, and closes to carry it — the long version spreads that grip over a greater span of the tube than the standard-length holder.

Who It's For

This is a good match if you own an FC-100DF, FC-100DL or FC-100DC and want the longer clamshell rather than the standard one — particularly on the DL, which is the longest tube of the three.

Key Features & Design

• Long-format clamshell: a greater bearing length along the tube than the standard holder.
• Fits the FC-100D series: the DF, DL and DC share the same tube diameter.
• Single-piece holder: one clamshell rather than a two-ring and bridge-plate assembly.

Recommended Uses

Mounting an FC-100DF, FC-100DL or FC-100DC to a Takahashi equatorial mount for visual observing or imaging.

Compatibility and Accessory Notes

Fits the FC-100DF, FC-100DL and FC-100DC, which share a tube diameter. Takahashi also builds a standard-length clamshell for the same series — if you are unsure which length suits your tube and mount, send us the model and we will confirm which one to send.

Good to Know Before You Order

This is the long version: Takahashi makes more than one clamshell for the FC-100D series. Worth a moment's check that the long holder is the one your setup calls for.

Sized to the FC-100D series: the bore is machined to that tube diameter and does not adjust to other Takahashi tubes.

Frequently Asked Questions

Is it difficult to set up?

No — the clamshell opens, the tube seats inside on the lining, and it closes around it.

Which telescopes does it fit?

The FC-100DF, FC-100DL and FC-100DC.

What is the difference between this and the standard clamshell?

Bearing length. This one grips over a longer span of the tube.

Bottom Line

The long-format Takahashi clamshell for the FC-100DF, DL and DC — a single-piece holder with a longer grip along the tube.